Answer: D) Cannot be determined
Step-by-step explanation:
Let's go through the possible answer choices.
If we wanted to use the AA (angle angle) similarity theorem, then we need two pairs of congruent angles. This diagram only shows one pair. We can rule out choice A.
Choices B and C can be ruled out also, because we only have info about one pair of sides. For SSS we need info about all 3 pairs of sides. For SAS we need info about two pairs of sides, and the angles between said sides must be congruent.
In short, we rule out choices A, B and C to be left with choice D as our answer. Unfortunately we don't have enough information to determine if the triangles are similar or not.